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Finding the Fourth Proportional to 96,543.80, 144,815.70 and 89,545.40

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Solution

The fourth proportional to 96,543.80, 144,815.70 and 89,545.40 is: 134,318.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,543.80 : 144,815.70 = 89,545.40 : x
  2. Step 2: Convert to fraction form
    96,543.80/144,815.70 = 89,545.40/x
  3. Step 3: Cross multiply
    96,543.80x = 144,815.70 × 89,545.40
  4. Step 4: Simplify right side
    96,543.80x = 12,967,579,782.78
  5. Step 5: Solve for x
    x = 12,967,579,782.78/96,543.80
  6. Step 6: Final answer
    x = 134,318.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.